What can WE do

[Mr. Dexter]

As "we" I mean those of us with CVT transmissions;
I am looking for more power and no matter where I look it seems that a CVT will be in the way of any power improvements.
Could we all just brainstorm for some ideas to give us some more horses?

[SanoSuKe]

2.5s can't really do much when it comes to performance. You could do BD tuner, exhaust/header and intake. That's all I can think of tbh. Just be careful if you're under warranty the BD tuner might void it, so double check first.

[Mr. Dexter]

2.5s can't really do much when it comes to performance. You could do BD tuner, exhaust/header and intake. That's all I can think of tbh. Just be careful if you're under warranty the BD tuner might void it, so double check first.

No warranty here, im only 16 and rather inexperienced when it comes to cars. could you explain the BD tuner?

[mikethemike]

Bully Dog Tuner (BD Tuner), from my understanding, is an "upgraded ECU" that controls your fuel and air flow. You can set it to it being economical or set it to where it makes the car faster, which is why most people have it. It eliminates the governor on the car which only tops off at 110 mph, you can control the throttle, making the car accelerate faster. I think the throttle only opens %80 of the way which results in our car accelerating sloooowly.

I hesitate on getting the BD tuner for a 2.5. If you wanted to go fast, then you should've gotten a 3.5. I'm satisfied with my 2.5 and the least you can do is throw on exhaust, headers and intake and call it a day. If you really want to eliminate restricted throttle and top speed, the go for the tuner.

[Mr. Dexter]

I'll have to weigh my options. I got beat in a little street drag by a civic Si and that really really bothered mefor some reason. I'm just looking to be a little faster than that damn civic and then I'll be content. Are there approximate horsepower increase specs on the things that you listed? And does the BD Tuner actually "find" more horsepower or does it just utilize what we alrready have more efficiently?
Thank you so far, you've been very helpful!

[IconicBlackCoupe]

You can try the safe shot nitrous system from ZEX. Under 300 and adds up to 35hp. That headers, exhaust, intake and a good tune should turn that frown upside down.

[Mr. Dexter]

Could you tell me anymore specs of HP increase for any of those other mentioned options. Just guesses are even cool as long as theyre some-what educated

[Innovazn]

Could you tell me anymore specs of HP increase for any of those other mentioned options. Just guesses are even cool as long as theyre some-what educated

Y Pipe - 10-15 hp
Intake - like.. 2 - 5?!?
Exhaust.... probably not much either

The gains truly come out at higher RPMS... So unless youre a highway warrior... yeah...

[Mr. Dexter]

Does anyone know if a Tuner and Nitrous could be combined and have a logical outcome?

[Innovazn]

Does anyone know if a Tuner and Nitrous could be combined and have a logical outcome?

i think nos would f*** your engine quite nicely... the 2.5's dont like being pushed hard and your cvt is gaurunteed to have shortened life span..... the BD tuner... that has proven gains..

pretty sure everyone else reading this would agree.... should have gotten a 3.5 with 6mt to really put some weight in it.

[Mr. Dexter]

Does anyone know if a Tuner and Nitrous could be combined and have a logical outcome?

i think nos would f*** your engine quite nicely... the 2.5's dont like being pushed hard and your cvt is gaurunteed to have shortened life span..... the BD tuner... that has proven gains..

pretty sure everyone else reading this would agree.... should have gotten a 3.5 with 6mt to really put some weight in it.

Well being so young and excited I ran headfirst into this and bought the first pretty car I saw. But I will learn from this experience and forever do research on any car I ever buy again.

Proably just get a BD and start running on 91 Octane when I want to kick some a** on the street.

[Innovazn]

check owners manual.. dont want to put such a high octane if its not needed can cause issues.....

and yeah....

[sc20]

How is 91 octane bad?? My car seems to run more quite. I do know that sometimes cars "don't like it" when you go from running higher octane for a while, and then switching back to lower octane.

[Mr. Dexter]

Ill obviously have to do some serious homework here to find some more power for the 2.5. Anyone have specs on how many horsepower the BD tuner can find?

[Innovazn]

How is 91 octane bad?? My car seems to run more quite. I do know that sometimes cars "don't like it" when you go from running higher octane for a while, and then switching back to lower octane.

knock sensors

timing

detonation due to octane level

s*** like that.

also the part about how theres no real gain and wasting the extra couple bucks on something you dont even need..... the "quietness, smoothness, added performance" most of it is in your head...

[Mr. Dexter]

Whats the highest octane we should run then?

[Innovazn]

Whats the highest octane we should run then?

Owners manual...

My old truck was an 02 Pathfinder with the same engine as my altima now (obviously older and tuned differently)

Owners manual for Pathfinder - Premium 91 +
Owners manual for my 3.5 Altima - 87 Regular f*** octane. Nuff said and thats all i need to know.


http://www.ehow.com/about_6317461_auto- ... ctane.html < Read

[Mr. Dexter]

Alright. But more importantly anyone have any specs for that BD Triple GT Horsepower-wise?

[Innovazn]

Alright. But more importantly anyone have any specs for that BD Triple GT Horsepower-wise?

http://www.bullydog.com/ < Read
http://www.bullydog.com/product.php?ID= ... N%20ALTIMA < Narrowed down. Read

[Innovazn]

Bro, Simply put

230 - Racingline Y Pipe =- Sorry, my mistake, i dont think 2.5's can use a Y-Pipe, You guys need headers

200-300 on your choice of Intake
and 200-1300 in your choice of axleback OR Catback (Catback is better)

Play with your car like that and see how it goes. Leave it at that. Tuner will do you wonders AFTER all the mods.

[IconicBlackCoupe]

Does anyone know if a Tuner and Nitrous could be combined and have a logical outcome?

i think nos would f*** your engine quite nicely... the 2.5's dont like being pushed hard and your cvt is gaurunteed to have shortened life span..... the BD tuner... that has proven gains..

pretty sure everyone else reading this would agree.... should have gotten a 3.5 with 6mt to really put some weight in it.

That's why I recommend the safe shot nitrous system. You will only see a gain of 35hp max. Normal nitrous systems get you a gain from 55-175hp.

[mikethemike]

What does it take to just simply tune the car without getting a BD Tuner (and the other popular tuner, i forgot what its called)?

What do they do when you get a tune? Just reflash the ecu?

[suprspinner]

will the safeshot nitrous work on a 3.5 cvt?

[Mr. Dexter]

Does anyone actually have the safeshot? or is this all hypothetical?

[Innovazn]

for the 2.5's trying to boost speed and all that crap using turbos and nos... might as well sell and buy a civic and f*** with it like that....

[Mr. Dexter]

Just going to get Bullydog and if that isnt enough for me ill throw that safeshot in there. Done deal.

[Innovazn]

Just going to get Bullydog and if that isnt enough for me ill throw that safeshot in there. Done deal.

Try Headers, Intake, and Exhaust first.. There is one thing you need to remember is that these cars arent sports cars.... Especially the 2.5.

What purpose is there with a Bully dog on a STOCK vehicle? not much.... get your parts first so you can actually do some tuning. and even then, RESEARCH and do your HOMEWORK on settings on your Bullydog before you f*** with things and turn your 2.5 into a semi trailer or a farm tractor.

[AlexM.]

It's cool that you're 16 and don't sound like an idiot. BDT is probably your best bang for the buck.

[Mr. Dexter]

It's cool that you're 16 and don't sound like an idiot. BDT is probably your best bang for the buck.

Thank you Alex. I figure I'll get the BDT first and then get more performance parts so I can have a baseline to work with and know how different parts affect it. The next step would probably be an exhaust and then from there I'd probably do the ZEX safe shot since its +35hp which is way more than headers, intake or anything else will bring to the party.

[mikethemike]

I dont necessarily have to have headers for the BD Tuner would I? All i have is an intake and full exhaust.